Shuttle



June 30, 1925. 1,544,276

J. c. sHAMBow SHUTTLE Filed March 29, 1923 Patented June 30, 1925. y

UNITED STATES l y 1,544,276 PATENT oFFlc-E'.

JOHN C. SHAMBOW, OF WOONSOCKET, RHODE ISLAND, ASSIGNOR VT SHAMBOW SHUT-TLE COMPANY, OF WOONSOCKET, BJI-IODE ISLAND, A. CORPORATION OF RHODEISLAND.

SHUTTLE.

Application led March 29, 1923.' Serial No. 628,453.

To ZZ whom t may concern.'

Be it known that I, JOHN C. SnAMBow, a citizen of the United States,residing at lVoonsocket, in the county of Providence and State of RhodeIslan-d, have invented certain new and useful Improvements in Shuttles;and I do hereby declare the ollowing to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

The present invention relatesto an improvement in shuttles.

The object of the invention is to reorganize and improve theconstruction of removable blade shuttles, and to this end the inventionconsists in the improved shuttle'hereinafter described and particularlydefined in the claim.

In the accompanying drawings illustrating the preferred from of theinvention, Fig. 1 is a plan of the shuttle, showing the end in which thebobbin holding blade is secured; Fig. 2 is a sectional elevation of thesame; and Fig. 3 is a transverse section taken on the line 3-3, Fig. 2.

The body of the shuttle is provided with the usualvbobbin recess 11. Thebobbin 12 is provided with the base 13 having driving notches 14 forengagement with the usual driving lugs on the spinning frame. It isdesirable to hold the bobbin both from longitudinal movement and fromrotational move ment in the shuttle, and to these ends the spindle 15 isprovided with a head 16 at its end to engage the tip of the bobbin andhold the bobbin from longitudinal movement on the spindle, and one ofthe notches 14 is adapted to be engaged by a lug on the spindle block21, pivoted at 22 on the pin 23 in the shuttle, which lug 20 holds thebobbin from rotating in the shuttle. This spindle block is provided witha central longitudinal pintle receiving hole 24 which receives thepintle 25 of the spindle 15. The spindle block is provided with a cam 26which is engaged by the spring 30, one end 31 of which engages the camas shown in Fig. 2, the other end 32 of which engages the bottom of theend of the spring slot 33 in the shuttle. A spring bolt 34 holds thespring in place and under tension. The pintle 25 of the spindle isslabbed oi at 35 so as to pass the pivot pin 22, and its end is providedwith a transverse recess 36 i is provided with a transverse recess 41Iadapted to engage and receive the transverse pin 42 supported in theshuttle body.l The spindle block is cut away at 43 so that when thespindle bloclt is turned down to the position shown in Fig. 2, thepin'42 enters the recess 43 without engagement of the pin with the wallsof' the recess. The spindle blade 44 is provided with an enlargement 45which is slabbed oli' at 46 to permit the spindle pintle to enter thespindle block until the shoulder of the enlargement 45 engages the faceof the spindle block without engagement with the projection 20hereinbefore referred to. In use, when it is desired to remove thebobbin from the spindle, the end of the spindle is lifted, therebydistorting the spring 30 and moving the point of the cam under the end31 of the spring, so that the spindle block will be held with thespindle inclined upwardly. At this time the spindle is free to beremoved from the spindle block; a bobbin may then be dofed and a newbobbin put in place. The operative positions the bobbin on the spindlewith one of the notches over the slabbed portion 46, and inserts thespindle pintle in the hole in the spindle block, pushing it down as faras it will go. Then the spindle and bobbin are pushed down into thebobbin recess in the shuttle, and the two recesses in the top and bottomof the spindle pintle receive the two transverse spindle holding pins 40and 42. 'Ihese pins now hold the spindle both` :trom rotation and fromlongitudinal movement, and the bobbin is held from longitudinal movementin one direction by the head of the spindle, and in the oppositedirection by engagement of the shoulder at the end of the bobbin recessin the shuttle, and it is held 'from rotation by the 'engagement of theprojection 20 of the spindle block with one of the recesses in thebobbin base. The spring 30 holds the spindlel block inclosed position,as shown in Fig. 2, by pressure on the top of the cam 26.

It is to be observed that the three pins, namely the spindle block pinand the spindle pintle holding ins, comprise the means for securely holing the bobbin in fixed poin both positions by the spring. The Con-`.struotio'n' vis simple', eliioient,r strong ind d`u- Table;

Having V,thus described the inventiom,

what is claimed is:

. A shuttle having, in combination; a, body,

' a spindle block. pivoted in the body and having a bobbin engaging lugto prevent `,rotation of the bobbin and a longitudinal `splindle hole,a, spindle having a; pintle received in the spindle hole and providedVWith an enlargement to form a shoulder iadapted `t0` beai against thespindle block, fthe enlirgementbeing sl'abbed beneath the bobbin en--gaging lug of the spindle'bloekg'and additional means engaging thespindle to prevent rlongitudinal vmovement vof the latter.

JOHN C. Sl-IAMBOW.

